JP2004120873A

JP2004120873A - Input/output terminal structure of resolver, and method of wiring resolver using it

Info

Publication number: JP2004120873A
Application number: JP2002279578A
Authority: JP
Inventors: Taiichi Miya; 宮　泰一; Hiroyuki Kujirai; 鯨井　裕之
Original assignee: Minebea Co Ltd
Current assignee: Minebea Co Ltd
Priority date: 2002-09-25
Filing date: 2002-09-25
Publication date: 2004-04-15
Anticipated expiration: 2022-09-25
Also published as: US20040119350A1; JP3864380B2; EP1404007A1; US6933636B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an input output terminal structure for a resolver which can withstand the use at high temperature and a wiring method for a resolver using it. <P>SOLUTION: This structure is equipped with a stator core 2, one insulating member 5, the other insulating member 6, and a lead wire terminal block 8 for connecting the stator winding with a lead wire 9. A projection 11 which has within a pit 12 for setting the above lead wire terminal 8 is made at the above stator core 2. The lead wire terminal block 8 has a through hole, and also has an engaging projection 24 for engaging with the through hole 26 made in the other insulating member 6, and a plurality of lead wire fixing grooves 32. Moreover, a flat terminal equipped with a flat terminal pin for connecting the lead wire 9 with the stator winding is provided to cross the above through hole 32, the lead wire terminal block 8 where the flat terminal block is attached is fixed to the stator core 2, and the stator winding is wound and welded by resistance to a weld, thereby being fused and fixed. The flat terminal pin and a connector 30 are arc-welded. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、高温での使用に耐えるレゾルバの入出力端子構造及びそれを用いたレゾルバの結線方法に関する。
【０００２】
【従来の技術】
従来からレゾルバの小型化と高性能化を達成するために各種のレゾルバが開発されている。例えば、絶縁部材と一体の絶縁延長部にピンを設け、このピンにステータ巻線を接続し、リード線又はコネクタを接続させた構成のレゾルバがある（例えば特許文献１参照。）。かかるレゾルバは、絶縁部材に設けたピンにステータ巻線を接続することにより、絶縁部材の低減化と小型化を計っている。しかし、絶縁部材と一体の絶縁延長部が一体になっていることから引き抜き力に対して弱い欠点がある。
【０００３】
一方、前記引き抜き力を強めるために、絶縁カバーに一体に設けられメス型又はオス型のコネクタピンを有するコネクタを有し、前記ステータ巻線は前記コネクタピンに接続されていると共に、外部コネクタを前記コネクタに直接着脱自在としたレゾルバがある（例えば特許文献２参照。）。このレゾルバは、絶縁カバーに一体にコネクタピンを有するコネクタが設けられていて、前記引き抜き力に対しては強いが、小型が難しい。
【０００４】
更に、前記問題点を解決する手段として、例えば輪状ステータの外周の一部に形成された切欠部内に端子ホルダを設け、リード線が輪状ステータの軸方向に沿って設けられ、各カバーを平面化することにより、径小化及び薄型化を達成する構成のレゾルバがある（例えば特許文献３参照。）。
【０００５】
前記何れのレゾルバにおいても、その使用温度は通常の温度であって、特に高温での使用に耐えるものではない。高温での使用に耐えるレゾルバは、例えば図８に示すような構造である。図８に示されるように、レゾルバの固定子は、ヨーク部の中心に向かう方向に複数本の固定磁極歯１０３を有する固定磁極１０４を突出させた板状体を複数枚積層した固定子コア１００と、該固定子コア１００の両側にそれぞれ備えられた一方の絶縁部材１０１と他方の絶縁部材１０７と、前記固定磁極１０４に卷回された図示していない固定子巻線を備えている。固定子コア１００の外周には凸部１０２が形成されていて、該凸部１０２にはリード線１１１を保持する溝１０８が形成されていて、該溝１０８には端子板１０５が立設している。
【０００６】
図９に示すように、該端子板１０５は下部イが前記溝１０８に植設されていて、上部には鍔状の溶接部１２０が屈曲して形成されている。該溶接部１２０には端子板１０５の上部に卷回された固定子巻線端１３０が溶接部１２０の間に通されて抵抗溶接あるいは高温はんだ付けされる。又、図１０に示すように、リード線１１１は、芯線１０９が被覆１０６で被われていて、斯かる被覆１０６を機械的方法あるいは科学的方法で削除してから前記端子板１０５の溶接部１２０の下に先端１０９が卷回されている。なお、図８ではリード線１１１の先端１０９は図示を省略している。
【０００７】
【特許文献１】
特開平１０−３０９０６７（図１）
【特許文献２】
特開２００１−３３０４７２（図１）
【特許文献３】
特開２００１−５６２３７（図１）
【０００８】
【発明が解決しようとする課題】
前記図８に示したレゾルバは、小型化と自動化が難しい。その理由は、環境温度が高いレゾルバでは固定子巻線として絶縁耐力の高い、例えばポリアミドイミド線などが用いられるが、その接続は抵抗溶接あるいは高温はんだで接続する必要がある。抵抗溶接の場合、溶接部は抵抗溶接器の電極に対応した大きさが必要であると共に、前記溝１０８に端子板１０５が立設しているので端子板１０５全体の小型化が難しい。又、固定子巻線にポリアミドイミド線を使用しているので、高温はんだの場合には絶縁皮膜を機械的方法あるいは科学的方法で削除する必要があり信頼性、作業性の点で問題がある。又、前記リード線は、固定子に取りつけた状態で固定子巻線の卷回をするために、自動巻線機の冶具構造が複雑になる。
【０００９】
本発明は、かかる問題を解決して高温での使用に耐えるレゾルバの入出力端子構造及びそれを用いたレゾルバの結線方法を提供することを目的としてなされたものである。
【００１０】
【課題を解決するための手段】
本発明は上記目的を達成するために請求項１記載のレゾルバの入出力端子構造は、ヨーク部の中心に向かう方向に複数本の固定磁極歯を有する固定磁極を突出させた板状体を複数枚積層した固定子コアと、該固定子コアの軸方向から両側にそれぞれ備えられた一方の絶縁部材と他方の絶縁部材と、固定磁極に卷回された固定子巻線をリード線に接続するリード線端子台を設けたステータ組立体を備えるレゾルバにおいて、前記リード線端子台は、固定子巻線端を卷回する固定用ピンが植設されていると共に、複数個の貫通孔と、該複数の貫通孔が並ぶ方向に貫通溝が形成されており、前記リード線と固定子巻線を接続する扁平端子ピン部を備える扁平端子が前記貫通溝を横切るように前記リード線端子台に水平に設けられ、前記リード線の先端には前記扁平端子ピン部に接続する接続端子が備えられていることを特徴とする。
【００１１】
請求項２記載のレゾルバの入出力端子構造は、請求項１記載のレゾルバの入出力端子構造において、前記リード線端子台は、その一方の面には複数個のリード線固定溝が形成されると共に、他方の面には前記複数の貫通孔が並ぶ側に固定子巻線を誘導するたるみピンと、前記貫通溝を隔てた前記たるみピンが設けられている反対側に固定子巻線端を卷回する固定ピンがそれぞれ立設しており、前記たるみピンは、当該リード線端子台の根元から容易に折取り可能であることを特徴とする。
【００１２】
請求項３記載のレゾルバの入出力端子構造は、請求項１又は２に記載のレゾルバの入出力端子構造において、前記リード線端子台は、前記固定ピン及びたるみピンが設けられている面あるいは他方の面に嵌合凸部が形成されており、該嵌合凸部は前記一方の絶縁部材または他方の絶縁部材の何れか一方に形成された貫通孔に嵌合されることを特徴とする。
【００１３】
請求項４記載のレゾルバの入出力端子構造は、請求項１から３の何れかに記載のレゾルバの入出力端子構造において、前記リード線端子台は、前記嵌合凸部と反対側の面に固定子コアに当接する鍔部が形成されていることを特徴とする。
【００１４】
請求項５記載のレゾルバの入出力端子構造は、請求項１から４の何れかに記載のレゾルバの入出力端子構造において、前記リード線端子台は、一方の絶縁部材及び他方の絶縁部材と別体に形成されていることを特徴とする。
【００１５】
請求項６記載のレゾルバの入出力端子構造は、請求項１から４の何れかに記載のレゾルバの入出力端子構造において、前記リード線端子台は、一方の絶縁部材又は他方の絶縁部材と一体に形成されていることを特徴とする。
【００１６】
請求項７記載のレゾルバの入出力端子構造は、請求項１から４の何れかに記載のレゾルバの入出力端子構造において、前記リード線端子台は、一方の面と他方の面との間で分離された上部端子台と下部端子台から構成され、上部端子台は一方の絶縁部材と、下部端子台は他方の絶縁部材とそれぞれ一体に形成されていることを特徴とする。
【００１７】
請求項８記載のレゾルバの入出力端子構造は、請求項１に記載のレゾルバの入出力端子構造において、前記扁平端子は、前記扁平端子ピン部が扁平端子に対して略９０度屈曲されて前記貫通孔に挿入されると共に他方の面に貫通されていて、該貫通された扁平端子ピン部は、前記リード線固定溝に沿って設けられた接続端子と接続されていることを特徴とする。
【００１８】
請求項９記載のレゾルバの入出力端子構造は、請求項１に記載のレゾルバの入出力端子構造において、前記扁平端子は、前記貫通溝を横切る箇所に鍔状の溶接部が屈曲して形成されていることを特徴とする。
【００１９】
請求項１０記載のレゾルバの結線方法は、ヨーク部の中心に向かう方向に複数本の固定磁極歯を有する固定磁極を突出させた板状体を複数枚積層した固定子コアと、該固定子コアの両側にそれぞれ備えられた一方の絶縁部材と他方の絶縁部材と、固定磁極に卷回された固定子巻線をリード線に接続するリード線端子台を備え、前記固定子コアには前記リード線端子台を嵌合するための凹部を内側に有する凸部が形成されており、リード線端子台は、複数個の貫通孔と、該複数の貫通孔が並ぶ方向に形成された貫通溝を有すると共に、一方の面には、前記何れか一方の絶縁部材に形成された貫通孔と嵌合する嵌合凸部と、複数個のリード線固定溝を有し、前記一方の面と異なる他方の面には、固定子巻線端を卷回する固定ピン及び当該リード線端子台の根元から容易に折取り可能な、たるみピンがそれぞれ前記貫通溝両側に立設して植設されると共に、前記リード線と固定子巻線を接続する扁平端子ピン部を備える扁平端子が前記貫通溝を横切るように設けられ、更に当該他方の面には固定子コアに係合する鍔部及び扁平端子に形成された貫通孔に嵌合する固定凸部が形成されると共に、前記扁平端子は前記貫通溝を横切る箇所に鍔状の溶接部が屈曲して形成されており、前記扁平端子ピン部は前記リード線端子台に形成された複数個の貫通孔に挿入可能な方向に略９０度屈曲されているステータ組立体を備えるレゾルバの入出力端子構造において、扁平端子を取りつけたリード線端子台を固定子コアに固定して固定子巻線を卷回し、該固定子巻線を前記溶接部に抵抗溶接して融着固定し、前記扁平端子ピン部と接続端子とをアーク溶接することを特徴とする。
【００２０】
請求項１１記載のレゾルバの結線方法は、請求項１０に記載のレゾルバの結線方法において、前記扁平端子ピン部を前記複数個の貫通孔に挿入して扁平端子に形成された貫通孔と前記固定凸部とを嵌合したリード線端子台を、固定子コアの前記凸部に形成されている凹部に嵌合した後に、固定子コアの両側から一方の絶縁部材と他方の絶縁部材をそれぞれ密着嵌合して前記何れか一方の絶縁部材に形成された貫通孔と前記嵌合凸部を嵌合し、該嵌合凸部の先端を溶融して絶縁部材に固定してステータ組立体を構成することを特徴とする。
【００２１】
請求項１２記載のレゾルバの結線方法は、請求項１０に記載のレゾルバの結線方法において、前記ステータ組立体に固定子巻線を卷回し、該卷回された固定子巻線端をたるみピンを介して前記扁平端子の屈曲して形成された溶接部の間を通過させた後に固定用ピンにその先端を卷回し、前記貫通溝の上下から抵抗溶接器の電極を挿入して前記溶接部を抵抗溶接することにより前記溶接部の間を通過した固定子巻線を前記溶接部で扁平端子に溶着してから前記たるみピンを折取ることを特徴とする。
【００２２】
請求項１３記載のレゾルバの結線方法は、請求項１０に記載のレゾルバの結線方法において、接続端子が先端に圧着されたリード線の接続端子を前記リード線固定溝に沿って配設し、前記複数個の貫通孔に挿入されて前記一方の面に貫通した前記扁平端子ピン部に前記接続端子を係合し、前記扁平端子ピン部と接続端子とをアーク溶接することを特徴とする。
【００２３】
【発明の実施の形態】
以下、本発明のレゾルバの入出力端子構造を理解するために、図１により本発明の固定子組立体１の構成を分解図により説明する。該固定子組立体１に例えば高温に耐えるポリアミドイミド線など固定子巻線が卷回され、周知の回転子とハウジングなどによりレゾルバが形成される。固定子組立体１は、固定子コア２と、該固定子コア２の軸方向から両側にそれぞれ備えられた一方の絶縁部材５と他方の絶縁部材６と、その外側に設けられるカバー７、３および前記一方の絶縁部材５及び他方の絶縁部材６と別体に形成されているリード線端子台８から構成されている。前記カバー７、３は同一形状である。前記絶縁部材５、６及びカバー７、３は、例えばポリブチレンテレフタレートなどで形成されている。固定子コア２は、ヨーク部の中心に向かう方向に複数本の固定磁極歯１４を有する固定磁極１５を突出させた板状体を複数枚積層して形成されている。固定磁極１５には図示していない固定子巻線が卷回される。一方の絶縁部材５と他方の絶縁部材６には、前記固定磁極歯１４と同一面になる鍔部１６とカバー７、３に形成された孔４３及び４５にそれぞれ嵌合する凸部４４及び４６が形成されている。
【００２４】
固定子コア２の外周にはリード線端子台８が嵌合される凹部１２が形成される凸部１１が備えられ、該凸部１１の先端１３は屈曲して形成されており、固定子コア２の図示していない回転軸方向から前記リード線端子台８を嵌入した時に外周方向に外れないようになっている。他方の絶縁部材６には凸部１９が形成されていて、該凸部１９には前記リード線端子台８が嵌入できる切りぬき部２７と、その外側には貫通孔２６が設けられている。同様にカバー３にも前記凸部１９と同じ形状の凸部２１と、外凸部２１には前記リード線端子台８が嵌入できる凹部２８が形成されている。
【００２５】
前記リード線端子台８は、例えばテフロン（Ｒ）などの高温、高絶縁耐力のある材料で形成され、リード線９と固定子巻線を接続する扁平端子ピン部２９を備える扁平端子１０（後述）が設けられている。前記リード線９は、後述するように複数個のリード線固定溝３２に配設される。該リード線固定溝３２の両端には固定凸部２２が形成されている。該固定凸部２２は、カバー７に形成された孔４７に嵌入されてリード線端子台８とカバー７が固定される。更に、嵌合凸部２４が形成されており、該嵌合凸部２４は前記他方の絶縁部材６に形成された凸部１９に設けられた貫通孔２６に嵌合される。なお、前記他方の絶縁部材６とカバー３に形成されている凸部は、一方の絶縁部材５とカバー７であっても良く、斯かる場合には前記リード線端子台８に形成された嵌合凸部２４は、一方の絶縁部材５に嵌合する方向に設けられている。更に又、リード線端子台８は、前記嵌合凸部２４と反対側の面に固定子コア２の凸部１１に当接する鍔部２５が形成されている。
【００２６】
リード線端子台８を前記固定子コア２の凹部１２に嵌入して固定子コア２の両側から一方の絶縁部材５と他方の絶縁部材６の嵌合部１８を巻線部１７に挿入し、固定磁極歯１４と鍔部１６を一致させる。更に一方の絶縁部材５と他方の絶縁部材６の外側をカバー７、３で覆い、一方の絶縁部材５と他方の絶縁部材６の凸部４４、４６とカバー７、３の孔４３、４５とを嵌合することにより固定子組立体１が形成される。
【００２７】
図２は、リード線端子台８の理解を容易にするために、他方の絶縁部材６、固定子コア２を図１の上下を逆にして示した図である。図２に示すように、リード線端子台８は、固定子コア２の外周に形成された凸部１１の先端１３の一方の絶縁部材５が設けられる側に鍔部２５が当接する。嵌合凸部２４は、他方の絶縁部材６に形成された貫通孔２６に嵌入され、その先端が溶着される。
【００２８】
図６に示すように、扁平端子１０は、抵抗溶接、及びアーク溶接が可能な、例えば燐青銅の板などで形成され、リード線９を接続する扁平端子ピン部２９をその先端に備え、扁平端子ピン部２９は端子部４０に対して略９０度屈曲されている。又、扁平端子ピン部２９が形成されている端と逆の端には貫通孔３９が形成され、該貫通孔３９にはリード線端子台８に形成されている凸部４１が嵌入される。更に端子部４０には鍔状の溶接部３８が扁平端子ピン部２９の屈曲している側と反対側に固定子巻線が通る隙間を有して形成されている。該溶接部３８には図示していない固定子巻線端が溶接部３８の間の前記隙間に通されて抵抗溶接される。
【００２９】
図３によりリード線端子台８の構成を説明する。リード線端子台８の上面には、凹部が形成され、該凹部内には、複数個のリード線固定溝３２、固定凸部２２、複数の貫通孔３１、貫通溝３３がそれぞれ以下のように形成されている。複数個のリード線固定溝３２の両端には固定凸部２２が形成されている。該固定凸部２２は、リード線端子台８の上面より高く形成されていて、カバー７に形成された孔４７に嵌入されてリード線端子台８とカバー７が固定される。リード線固定溝３２に対峙する位置にはリード線端子台８の下面に貫通する複数個の貫通孔３１が形成されている。該複数の貫通孔３１が並ぶ方向であって複数の貫通孔３１とリード線固定溝３２との間にはリード線端子台８の下面に貫通する貫通溝３３が形成されている。それぞれのリード線固定溝３２には、先端に扁平端子ピン部２９とアーク溶接により接続される接続端子３０を備えたリード線９が配設される。扁平端子ピン部２９は後述するようにそれぞれの貫通孔３１をリード線端子台８の下面から貫通してリード線端子台８の上面に立設される。更に、固定凸部２２の外側には固定子コア２の凸部１１に当接する鍔部２５が形成されている。
【００３０】
リード線端子台８の下面には、凹部が形成され、該凹部内には、複数の貫通孔３１、貫通溝３３がそれぞれリード線端子台８の上面に貫通していると共に、凸部４１が形成され、複数のたるみピン３６と固定用ピン３４がそれぞれ植設されている。リード線端子台８の下面の幅Ｗ１と奥行きＤ１は、固定子コア２の凹部１２の幅Ｗ２と奥行きＤ２とそれぞれ略等しくリード線端子台８が定子コア２の凹部１２に嵌合可能である。前記複数の貫通孔３１の間には固定子巻線を誘導するたるみピン３６がそれぞれ立設されている。該たるみピン３６は、当該リード線端子台の根元から容易に折取り可能なように、例えば根元に切りこみが刻まれている。前記貫通溝３３を隔てた前記たるみピン３６が設けられている反対側には、固定子巻線端を卷回する固定ピン３４がそれぞれ立設して植設されている。該固定ピン３４は卷回された固定子巻線が抜けないように略四角柱の形状が好ましく、扁平端子１０に対して互いに斜めになる位置に立設されている。
【００３１】
前記扁平端子１０は、前記貫通溝３３を横切るように設けられ、扁平端子ピン部２９は前記貫通孔３９にリード線端子台８の下面から挿入されて上面に貫通されている。該貫通された扁平端子ピン部２９は、リード線端子台８の凹部の高さ以下であって、前記リード線固定溝３２に配設されたリード線９の先端の接続端子３０と接続される。又、前記扁平端子１０の貫通孔３９には凸部４１が嵌入される。固定子巻線端３５は、たるみピン３６を介して扁平端子１０に形成された鍔状の溶接部３８の隙間に通されて固定ピン３４に数回卷回される。溶接部３８の隙間に通された固定子巻線は、後述するように抵抗溶接される。リード線固定溝３２の両端には更に、嵌合凸部２４がたるみピン３６が立設する方向、即ち他方の絶縁部材６に対峙する方向に形成されている。該嵌合凸部２４は、他方の絶縁部材６の凸部１９に設けられた貫通孔２６に嵌合される。
【００３２】
図４、図５により固定子コア２に別体に形成されているリード線端子台８を嵌合し、その両側にそれぞれ一方の絶縁部材５と他方の絶縁部材６と更にその外側にカバー７、３を設けた固定子組立体１の構成を説明する。固定子コア２の凹部に嵌入されたリード線端子台８は、固定子コア２の凸部１１に鍔部２５が当接している。嵌合凸部２４が他方の絶縁部材６に形成された貫通孔２６に嵌合されている。一方の絶縁部材５は、カバー７の凸部２０及び周辺の立壁７ａに当接し、他方の絶縁部材６は、カバー３の凸部２１及び周辺の立壁３ａに当接している。
【００３３】
図７は、前記リード線端子台と絶縁部材を一体形成にして構成した固定子組立体の分解図であって、リード線端子台８を図３（ａ）に示すＧ部から水平方向に２つの別体に分離し、該別体をそれぞれ一方の絶縁部材５と他方の絶縁部材６とに設けた構造である。即ち、一方の絶縁部材５には図３（ａ）で示すＧ部から上の部分が、他方の絶縁部材６には図３（ａ）で示すＧ部から下の部分がそれぞれの凸部８１、８０に形成されている。なお、固定子コア２の構造は図１の実施形態と同一である。
【００３４】
図７において、図１及び図３で説明したと同一部分については同一符号を付してあり、その説明を省略する。一方の絶縁部材５は、その外周に凸部８１を有し、該凸部８１には複数の貫通孔３１と貫通溝３３が形成されている。又、凸部８１の固定子コア２に当接する側と反対側、即ち図示していないカバー（７）に対峙する側には、複数個のリード線固定溝３２が図３（ａ）に示したように形成されている。凸部８１の固定子コア２に当接する側には貫通溝３３の両端に凸部５０がそれぞれ形成されている。
【００３５】
他方の絶縁部材６は、その外周に凸部８０を有し、該凸部８０には複数の貫通孔３１と貫通溝３３が形成されている。又、凸部８０の固定子コア２に当接する側と反対側、即ち図示していないカバー（３）に対峙する側には、凹部が形成され、該凹部内には、複数の貫通孔３１、貫通溝３３がそれぞれ貫通している。更に、貫通溝３３の一方の側には凸部４１が形成されると共に固定用ピン３４が植設されている。貫通溝３３の他方の側には複数のたるみピン３６が複数の貫通孔３１の間に植接されていて、図３（ｂ）に示したように形成されている。前記たるみピン３６は当該リード線端子台の根元から容易に折取り可能なように、例えば根元に切りこみが刻まれている。凸部８０には貫通溝３３の両端に貫通孔５１がそれぞれ形成されている。固定子コアの凸部に形成された凹部１２に前記凸部８０と８１を勘合させると共に、前記凸部５０を貫通孔５１に嵌入し、その先端が溶融されることにより、一方の絶縁部材５と他方の絶縁部材６が固定子コア２の両側に固定される。
【００３６】
図１の固定子組立体１は、以下のようにして組み立てられる。即ち、扁平端子ピン部２９を複数個の貫通孔３１に挿入して扁平端子１０に形成された貫通孔３９と前記固定凸部４１とを嵌合したリード線端子台８を、固定子コア２の凸部１１に形成されている凹部１２に嵌合する。固定子コア２の両側から一方の絶縁部材５と他方の絶縁部材６をそれぞれ密着嵌合して貫通孔２６と前記嵌合凸部２４を嵌合し、該嵌合凸部２４の先端を溶融して固定子コア２と一方の絶縁部材５と他方の絶縁部材６とを固定してステータ組立体を組み立てる。
【００３７】
前記図１のステータ組立体１を用いたレゾルバの結線方法について図３を参照しつつ以下に説明する。図示していない固定子巻線をステータ組立体１の各磁極に卷回し、該卷回された固定子巻線端３５をたるみピン３６を介して扁平端子１０の屈曲して形成された溶接部３８の間を通過させた後に固定用ピン３４にその先端を卷回する。図示していない抵抗溶接器の電極を上下から貫通溝３３に挿入して溶接部を上下から押さえて抵抗溶接する。その結果、溶接部３８の間を通過した固定子巻線３５は溶接部３８で扁平端子１０に溶着される。その後に前記たるみピン３６を折取る。
【００３８】
次に、接続端子３０が先端に圧着されたリード線９の接続端子３０をリード線固定溝３２に沿って配設し、複数個の貫通孔３１に挿入されて一方の面に貫通した扁平端子ピン部２９に前記接続端子３０を係合し、前記扁平端子ピン部２９と接続端子３０とをアーク溶接する。前記リード線９は前記扁平端子ピン部２９を介して溶接部３８で扁平端子１０に溶着された固定子巻線３５に接続される。なお、前記たるみピン３６の折取りは、前記アーク溶接が終わった後に行なうようにしてもよい。
【００３９】
図７の固定子組立体１は、以下のようにして組み立てられる。即ち、一方の絶縁部材５に形成された複数個の貫通孔３１に扁平端子ピン部２９を挿入すると共に、扁平端子１０に形成された貫通孔３９を固定凸部４１に嵌合して扁平端子１０が貫通溝３３を横切るようにして固定する。固定子コア２の両側から一方の絶縁部材５と他方の絶縁部材６の凸部８１、８０を固定子コア２の凹部１２にそれぞれ密着嵌合して貫通孔５１と凸部５０とを嵌合し、該凸部５０の先端を溶融して固定子コア２と一方の絶縁部材５と他方の絶縁部材６とを固定してステータ組立体を組み立てる。
【００４０】
前記図７のステータ組立体１を用いたレゾルバの結線方法について図３を参照しつつ、以下に説明する。図示していない固定子巻線をステータ組立体１の各磁極に卷回し、該卷回された固定子巻線端３５をたるみピン３６を介して扁平端子１０の屈曲して形成された溶接部３８の間を通過させた後に固定用ピン３４にその先端を卷回する。図示していない抵抗溶接器の電極を上下から貫通溝３３に挿入して溶接部を上下から押さえて抵抗溶接する。その結果、溶接部３８の間を通過した固定子巻線３５は溶接部３８で扁平端子１０に溶着される。その後に前記たるみピン３６を折取る。
【００４１】
次に、接続端子３０が先端に圧着されたリード線９の接続端子３０をリード線固定溝３２に沿って配設し、複数個の貫通孔３１に挿入されて一方の面に貫通した扁平端子ピン部２９に前記接続端子３０を係合し、前記扁平端子ピン部２９と接続端子３０とをアーク溶接する。前記リード線９は前記扁平端子ピン部２９を介して溶接部３８で扁平端子１０に溶着された固定子巻線３５に接続される。なお、前記たるみピン３６の折取りは、前記アーク溶接が終わった後に行なうようにしてもよい。
【００４２】
【発明の効果】
請求項１記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、固定子巻線端を卷回する固定用ピンが植設されていると共に、複数個の貫通孔と、該複数の貫通孔が並ぶ方向に貫通溝が形成されており、前記リード線と固定子巻線を接続する扁平端子ピン部を備える扁平端子が前記貫通溝を横切るように前記リード線端子台に水平に設けられ、前記リード線の先端には前記扁平端子ピン部に接続する接続端子が備えられていることにより、端子板を小型化すると共に、前記貫通溝に抵抗溶接器の電極が容易に挿入できるようになりレゾルバの固定子巻線として絶縁耐力の高い、例えばポリアミドイミド線などを使用することが可能となり環境温度が高い小型のレゾルバが実現できる。また、前記リード線は、固定子に取りつけた状態で固定子巻線を卷回する必要がなくなり、自動巻線機の冶具構造が簡単になり自動化が容易になる。
【００４３】
請求項２記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、その一方の面には複数個のリード線固定溝が形成されると共に、他方の面には前記複数の貫通孔が並ぶ側に固定子巻線を誘導するたるみピンと、前記貫通溝を隔てた前記たるみピンが設けられている反対側に固定子巻線端を卷回する固定ピンがそれぞれ立設しており、前記たるみピンは、当該リード線端子台の根元から容易に折取り可能であることにより、前記リード線を固定子に取りつけた状態で固定子巻線の卷回をする必要がなくなり、自動巻線機の冶具構造が簡単になる。更に、従来冶具にたるみピンを設けていたが、前記たるみピンは当該リード線端子台の根元から容易に折取り可能であることにより、冶具構造が簡単になる。
【００４４】
請求項３記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、前記固定ピン及びたるみピンが設けられている面あるいは他方の面に嵌合凸部が形成されており、該嵌合凸部は前記一方の絶縁部材または他方の絶縁部材の何れか一方に形成された貫通孔に嵌合されることにより、前記嵌合凸部を融着する事により、軸方向に対して固定される。
【００４５】
請求項４記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、前記嵌合凸部と反対側の面に固定子コアに当接する鍔部が形成されていることにより、軸方向に対しての位置あわせが容易になると共に、軸方向に対して固定される。
【００４６】
請求項５記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、一方の絶縁部材及び他方の絶縁部材と別体に形成されていることにより、設計の自由度が増すと共に、高温環境下などの仕様に適したリード線端子台を使用できる。
【００４７】
請求項６及び７に記載のレゾルバの入出力端子構造によれば、前記リード線端子台は、一方の絶縁部材又は他方の絶縁部材と一体に形成されており、一方の面と他方の面との間で分離された上部端子台と下部端子台から構成されていることにより、使用環境が緩やかな場合に使用されるレゾルバでは構造を簡単にできると共に、価格低減が可能である。
【００４８】
請求項８、９記載のレゾルバの入出力端子構造によれば、前記扁平端子ピン部は扁平端子に対して略９０度屈曲されて前記貫通孔に挿入されると共に他方の面に貫通されていて、該貫通された扁平端子ピン部は、前記リード線固定溝に沿って設けられた接続端子と接続されており、前記貫通溝を横切る箇所に鍔状の溶接部が屈曲して形成されていることにより、抵抗溶接機により容易に固定子巻線と溶接部を溶接できる。
【００４９】
請求項１０記載のレゾルバの結線方法によれば、扁平端子を取りつけたリード線端子台を固定子コアに固定して固定子巻線を卷回し、該固定子巻線を前記溶接部に抵抗溶接して融着固定し、前記扁平端子ピン部と接続端子とをアーク溶接することにより、自動化が容易である。
【００５０】
請求項１１記載のレゾルバの結線方法によれば、前記扁平端子ピン部を前記複数個の貫通孔に挿入して扁平端子に形成された貫通孔と前記固定凸部とを嵌合したリード線端子台を、固定子コアの前記凸部に形成されている凹部に嵌合した後に、固定子コアの両側から一方の絶縁部材と他方の絶縁部材をそれぞれ密着嵌合して前記何れか一方の絶縁部材に形成された貫通孔と前記嵌合凸部を嵌合し、該嵌合凸部の先端を溶融して絶縁部材に固定してステータ組立体を構成することにより、固定子巻線の卷回が容易なステータ組立体ができる。
【００５１】
請求項１２記載のレゾルバの結線方法によれば、前記ステータ組立体に固定子巻線を卷回し、該卷回された固定子巻線端をたるみピンを介して前記扁平端子の屈曲して形成された溶接部の間を通過させた後に固定用ピンにその先端を卷回し、前記貫通溝の上下から抵抗溶接器の電極を挿入して前記溶接部を抵抗溶接することにより前記溶接部の間を通過した固定子巻線を前記溶接部で扁平端子に溶着してから前記たるみピンを折取ることをにより、簡単な冶具構造によりレゾルバの結線ができる。
【００５２】
請求項１３記載のレゾルバの結線方法によれば、接続端子が先端に圧着されたリード線の接続端子を前記リード線固定溝に沿って配設し、前記複数個の貫通孔に挿入されて前記一方の面に貫通した前記扁平端子ピン部に前記接続端子を係合し、前記扁平端子ピン部と接続端子とをアーク溶接することにより、簡略な自動巻線冶具構造によりレゾルバの結線ができる。
【図面の簡単な説明】
【図１】本発明の固定子組立体の分解図である。
【図２】本発明の固定子コア、他方の絶縁部材、リード線端子台の分解図である。
【図３】本発明のリード線端子台の斜視図であって、図３（ａ）は上面斜視図、図３（ｂ）は下面斜視図、図３（ｃ）は扁平端子周辺の拡大図である。
【図４】本発明の固定子組立体の図２Ａ−Ｂ断面図である。
【図５】本発明の固定子組立体の図２Ｃ−Ｄ断面図である。
【図６】本発明の扁平端子の斜視図である。
【図７】本発明の固定子組立体の他の実施形態を示す分解図である。
【図８】従来のレゾルバの固定子の正面図（ａ）と前面図（ｂ）である。
【図９】従来の端子板の図である。
【図１０】従来のリード線を示す図である。
【符号の説明】
１　固定子組立体
２　固定子コア
３、７　カバー
５、６　絶縁部材
８　リード線端子台
９　リード線
１０　扁平端子
２９　扁平端子ピン部
３４　固定用ピン
３６　たるみピン
３８　溶接部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an input / output terminal structure of a resolver that can withstand use at a high temperature and a method of connecting a resolver using the same.
[0002]
[Prior art]
Conventionally, various resolvers have been developed in order to achieve miniaturization and high performance of the resolver. For example, there is a resolver having a configuration in which a pin is provided on an insulating extension integrated with an insulating member, a stator winding is connected to the pin, and a lead wire or a connector is connected (for example, see Patent Document 1). In such a resolver, a stator winding is connected to a pin provided on an insulating member, thereby reducing the size and size of the insulating member. However, there is a drawback that the insulating extension is weak against the pulling force because the insulating extension is integrated with the insulating member.
[0003]
On the other hand, in order to enhance the pull-out force, a connector having a female or male connector pin provided integrally with the insulating cover is provided, and the stator winding is connected to the connector pin, and an external connector is provided. There is a resolver that can be directly attached to and detached from the connector (for example, see Patent Document 2). This resolver is provided with a connector having a connector pin integrated with an insulating cover, and is strong against the pull-out force, but is difficult to miniaturize.
[0004]
Further, as means for solving the above problems, for example, a terminal holder is provided in a notch formed in a part of the outer periphery of the annular stator, and lead wires are provided along the axial direction of the annular stator, and each cover is flattened. By doing so, there is a resolver configured to achieve a reduction in diameter and thickness (for example, see Patent Document 3).
[0005]
In any of the above resolvers, the use temperature is a normal temperature and does not withstand use at a particularly high temperature. A resolver that withstands use at a high temperature has, for example, a structure as shown in FIG. As shown in FIG. 8, the stator of the resolver is a stator core 100 in which a plurality of plate-like bodies each having a plurality of fixed magnetic poles 104 having a plurality of fixed magnetic pole teeth 103 protruding in the direction toward the center of the yoke portion are stacked. And one insulating member 101 and the other insulating member 107 provided on both sides of the stator core 100, respectively, and a stator winding (not shown) wound around the fixed magnetic pole 104. A protrusion 102 is formed on the outer periphery of the stator core 100, and a groove 108 for holding a lead wire 111 is formed in the protrusion 102, and a terminal plate 105 is erected on the groove 108. I have.
[0006]
As shown in FIG. 9, a lower portion of the terminal plate 105 is implanted in the groove 108, and a flange-shaped welded portion 120 is formed to be bent at an upper portion. A stator winding end 130 wound around the upper part of the terminal plate 105 is passed through the welded portion 120 between the welded portions 120 and subjected to resistance welding or high-temperature soldering. As shown in FIG. 10, the lead wire 111 has a core wire 109 covered with a coating 106, and after removing the coating 106 by a mechanical method or a scientific method, a welding portion 120 of the terminal plate 105 is formed. The tip 109 is wound below. In FIG. 8, the tip 109 of the lead wire 111 is not shown.
[0007]
[Patent Document 1]
JP-A-10-309067 (FIG. 1)
[Patent Document 2]
JP-A-2001-330472 (FIG. 1)
[Patent Document 3]
JP 2001-56237 A (FIG. 1)
[0008]
[Problems to be solved by the invention]
The resolver shown in FIG. 8 is difficult to miniaturize and automate. The reason is that a resolver having a high ambient temperature uses a high dielectric strength, for example, a polyamide-imide wire, as a stator winding, and the connection must be made by resistance welding or high-temperature solder. In the case of resistance welding, the welding portion needs to have a size corresponding to the electrode of the resistance welding device, and since the terminal plate 105 is provided upright in the groove 108, it is difficult to reduce the size of the terminal plate 105 as a whole. In addition, since a polyamide-imide wire is used for the stator winding, it is necessary to remove the insulating film by a mechanical method or a scientific method in the case of high-temperature solder, and there is a problem in reliability and workability. . In addition, since the above-mentioned lead wire is wound around the stator while being attached to the stator, the jig structure of the automatic winding machine becomes complicated.
[0009]
An object of the present invention is to provide a resolver input / output terminal structure capable of withstanding use at a high temperature by solving such a problem and a method of connecting a resolver using the same.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an input / output terminal structure for a resolver according to claim 1, wherein a plurality of plate-like bodies having a plurality of fixed magnetic poles having a plurality of fixed magnetic pole teeth project in a direction toward the center of the yoke portion. A plurality of stator cores, one insulating member and the other insulating member provided on both sides from the axial direction of the stator core, and a stator winding wound on the fixed magnetic pole are connected to a lead wire. In a resolver provided with a stator assembly provided with a lead wire terminal block, the lead wire terminal block is provided with a fixing pin for winding a stator winding end, and a plurality of through holes; A through-groove is formed in a direction in which the plurality of through-holes are arranged, and a flat terminal having a flat terminal pin portion connecting the lead wire and the stator winding is horizontally formed on the lead wire terminal block so as to cross the through-groove. At the end of the lead wire Characterized in that it provided with a connection terminal to be connected to the flat terminal pin unit on.
[0011]
According to a second aspect of the present invention, there is provided the resolver input / output terminal structure according to the first aspect, wherein the lead wire terminal block has a plurality of lead wire fixing grooves formed on one surface thereof. At the same time, on the other surface, a slack pin for guiding a stator winding is provided on the side where the plurality of through holes are arranged, and a stator winding end is wound on the opposite side where the slack pin is provided across the through groove. Rotating fixing pins are provided upright, and the slack pins can be easily broken off from the base of the lead terminal block.
[0012]
The input / output terminal structure of the resolver according to claim 3 is the input / output terminal structure of the resolver according to claim 1 or 2, wherein the lead wire terminal block has a surface on which the fixing pin and the slack pin are provided, or the other surface. Is formed on the surface of the first member, and the fitting protrusion is fitted into a through hole formed in one of the one insulating member and the other insulating member.
[0013]
The input / output terminal structure of the resolver according to claim 4 is the input / output terminal structure of the resolver according to any one of claims 1 to 3, wherein the lead wire terminal block is provided on a surface opposite to the fitting protrusion. It is characterized in that a flange portion that comes into contact with the stator core is formed.
[0014]
The input / output terminal structure of the resolver according to claim 5 is the input / output terminal structure of the resolver according to any one of claims 1 to 4, wherein the lead wire terminal block is separate from one insulating member and the other insulating member. It is characterized by being formed in the body.
[0015]
The input / output terminal structure of a resolver according to claim 6 is the input / output terminal structure of the resolver according to any one of claims 1 to 4, wherein the lead wire terminal block is integrated with one insulating member or the other insulating member. It is characterized by being formed in.
[0016]
The input / output terminal structure of the resolver according to claim 7 is the input / output terminal structure of the resolver according to any one of claims 1 to 4, wherein the lead wire terminal block is provided between one surface and the other surface. It is characterized by comprising an upper terminal block and a lower terminal block which are separated, wherein the upper terminal block is formed integrally with one insulating member and the lower terminal block is formed integrally with the other insulating member.
[0017]
The input / output terminal structure of the resolver according to claim 8 is the input / output terminal structure of the resolver according to claim 1, wherein the flat terminal is formed by bending the flat terminal pin portion substantially 90 degrees with respect to the flat terminal. The flat terminal pin portion is inserted into the through hole and penetrated through the other surface, and the penetrated flat terminal pin portion is connected to a connection terminal provided along the lead wire fixing groove.
[0018]
The input / output terminal structure for a resolver according to claim 9 is the input / output terminal structure for a resolver according to claim 1, wherein the flat terminal is formed by bending a flange-shaped welded portion at a position crossing the through groove. It is characterized by having.
[0019]
The method for connecting a resolver according to claim 10, wherein the stator core is formed by stacking a plurality of plate-like bodies each having a plurality of fixed magnetic poles having a plurality of fixed magnetic pole teeth protruding in a direction toward the center of the yoke portion. One insulating member and the other insulating member respectively provided on both sides of the stator core, and a lead wire terminal block for connecting a stator winding wound around a fixed magnetic pole to a lead wire. A convex portion having a concave portion for fitting the wire terminal block inside is formed, and the lead wire terminal block has a plurality of through holes and a through groove formed in a direction in which the plurality of through holes are arranged. And having, on one surface, a fitting convex portion that fits into a through hole formed in one of the insulating members, and a plurality of lead wire fixing grooves, the other being different from the one surface. The surface of the fixed pin and the lead wire around the end of the stator winding A flat terminal having a flat terminal pin portion, which can be easily broken off from the base of the slave stand, is implanted so as to stand on both sides of the through groove, respectively, and is connected to the lead wire and the stator winding. Is provided so as to traverse the through-groove, and the other surface is provided with a flange portion that engages with the stator core and a fixed convex portion that fits into a through-hole formed in the flat terminal, The flat terminal is formed by bending a flange-shaped welded portion at a position crossing the through groove, and the flat terminal pin portion is inserted in a direction that can be inserted into a plurality of through holes formed in the lead wire terminal block. In the input / output terminal structure of a resolver having a stator assembly bent at substantially 90 degrees, a lead wire terminal block having a flat terminal attached thereto is fixed to a stator core, and a stator winding is wound. To the weld by resistance welding And, characterized by arc welding the connection terminal to the flat terminal pin part.
[0020]
A method for connecting a resolver according to an eleventh aspect is the method for connecting a resolver according to the tenth aspect, wherein the flat terminal pin portion is inserted into the plurality of through-holes and is fixed to the through-hole formed in the flat terminal. After fitting the lead wire terminal block fitted with the convex part to the concave part formed in the convex part of the stator core, one insulating member and the other insulating member are closely adhered from both sides of the stator core, respectively. The stator assembly is formed by fitting and fitting the through-hole formed in one of the insulating members with the fitting convex portion, melting the tip of the fitting convex portion and fixing to the insulating member. It is characterized by doing.
[0021]
A method for connecting a resolver according to a twelfth aspect is the method for connecting a resolver according to the tenth aspect, wherein a stator winding is wound around the stator assembly, and a slack pin is attached to an end of the wound stator winding. After passing between the welded portions formed by bending the flat terminal, the distal end is wound around a fixing pin, and electrodes of a resistance welder are inserted from above and below the through-groove to form the welded portion. The method is characterized in that the stator winding that has passed between the welded portions by resistance welding is welded to the flat terminal at the welded portion, and then the slack pin is broken off.
[0022]
The method for connecting a resolver according to claim 13 is the method for connecting a resolver according to claim 10, wherein a connection terminal of a lead wire whose connection terminal is crimped to a tip is disposed along the lead wire fixing groove, The connection terminal is engaged with the flat terminal pin portion inserted into the plurality of through holes and penetrated through the one surface, and the flat terminal pin portion and the connection terminal are arc-welded.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, in order to understand the input / output terminal structure of the resolver of the present invention, the configuration of the stator assembly 1 of the present invention will be described with reference to an exploded view of FIG. A stator winding such as a polyamide-imide wire that withstands high temperature is wound around the stator assembly 1, and a resolver is formed by a known rotor and housing. The stator assembly 1 includes a stator core 2, one insulating member 5 and the other insulating member 6 provided on both sides in the axial direction of the stator core 2, and covers 7, 3 provided on the outside thereof. And a lead terminal block 8 formed separately from the one insulating member 5 and the other insulating member 6. The covers 7, 3 have the same shape. The insulating members 5, 6 and the covers 7, 3 are formed of, for example, polybutylene terephthalate. The stator core 2 is formed by laminating a plurality of plate-like bodies each having a fixed magnetic pole 15 having a plurality of fixed magnetic pole teeth 14 protruding in a direction toward the center of the yoke portion. A stator winding (not shown) is wound around the fixed magnetic pole 15. The one insulating member 5 and the other insulating member 6 have a flange 16 which is flush with the fixed magnetic pole teeth 14 and convex portions 44 and 46 which are fitted into holes 43 and 45 formed in the covers 7 and 3, respectively. Is formed.
[0024]
The outer periphery of the stator core 2 is provided with a convex portion 11 having a concave portion 12 into which the lead wire terminal block 8 is fitted, and the distal end 13 of the convex portion 11 is formed to be bent. 2, the lead wire terminal block 8 is prevented from coming off in the outer peripheral direction when the lead wire terminal block 8 is fitted from the rotation axis direction (not shown). The other insulating member 6 has a convex portion 19 formed with a cutout portion 27 into which the lead wire terminal block 8 can be fitted, and a through hole 26 provided outside the cutout portion 27. Similarly, the cover 3 has a convex portion 21 having the same shape as the convex portion 19, and a concave portion 28 into which the lead wire terminal block 8 can be fitted.
[0025]
The lead wire terminal block 8 is made of a material having a high temperature and a high dielectric strength, such as Teflon (R), and has a flat terminal 10 (described later) having a flat terminal pin portion 29 for connecting the lead wire 9 and the stator winding. ) Is provided. The lead wires 9 are provided in a plurality of lead wire fixing grooves 32 as described later. The fixing protrusions 22 are formed at both ends of the lead wire fixing groove 32. The fixing protrusion 22 is fitted into a hole 47 formed in the cover 7 to fix the lead wire terminal block 8 to the cover 7. Further, a fitting projection 24 is formed, and the fitting projection 24 is fitted into a through hole 26 provided in the projection 19 formed on the other insulating member 6. The protrusion formed on the other insulating member 6 and the cover 3 may be the one insulating member 5 and the cover 7. In such a case, the fitting formed on the lead wire terminal block 8 may be used. The mating projection 24 is provided in a direction in which the mating projection 24 is fitted to the one insulating member 5. Further, the lead wire terminal block 8 is formed with a flange 25 which is in contact with the protrusion 11 of the stator core 2 on a surface opposite to the fitting protrusion 24.
[0026]
The lead wire terminal block 8 is fitted into the recess 12 of the stator core 2, and the fitting portions 18 of the one insulating member 5 and the other insulating member 6 are inserted into the winding portion 17 from both sides of the stator core 2, The fixed magnetic pole teeth 14 and the flange 16 are matched. Further, the outsides of the one insulating member 5 and the other insulating member 6 are covered with covers 7 and 3, and the protrusions 44 and 46 of the one insulating member 5 and the other insulating member 6 and the holes 43 and 45 of the covers 7 and 3 are formed. Are fitted to form the stator assembly 1.
[0027]
FIG. 2 is a diagram showing the other insulating member 6 and the stator core 2 upside down in FIG. 1 in order to facilitate understanding of the lead wire terminal block 8. As shown in FIG. 2, in the lead wire terminal block 8, a flange 25 abuts on a side of the distal end 13 of a convex portion 11 formed on the outer periphery of the stator core 2 on which one insulating member 5 is provided. The fitting protrusion 24 is fitted into a through hole 26 formed in the other insulating member 6, and the tip is welded.
[0028]
As shown in FIG. 6, the flat terminal 10 is formed of, for example, a phosphor bronze plate capable of resistance welding and arc welding, and has a flat terminal pin portion 29 for connecting the lead wire 9 at its distal end. The terminal pin portion 29 is bent substantially 90 degrees with respect to the terminal portion 40. Further, a through hole 39 is formed at an end opposite to the end at which the flat terminal pin portion 29 is formed, and a protrusion 41 formed on the lead wire terminal block 8 is fitted into the through hole 39. Further, a flange-like welded portion 38 is formed in the terminal portion 40 with a gap through which the stator winding passes on the side opposite to the bent side of the flat terminal pin portion 29. A not-shown stator winding end is passed through the gap between the welded portions 38 and resistance-welded to the welded portion 38.
[0029]
The configuration of the lead wire terminal block 8 will be described with reference to FIG. A concave portion is formed on the upper surface of the lead wire terminal block 8, and a plurality of lead wire fixing grooves 32, a fixing convex portion 22, a plurality of through holes 31, and a through groove 33 are respectively formed in the concave portion as follows. Is formed. The fixing protrusions 22 are formed at both ends of the plurality of lead wire fixing grooves 32. The fixing projection 22 is formed higher than the upper surface of the lead wire terminal block 8, and is fitted into a hole 47 formed in the cover 7 to fix the lead wire terminal block 8 and the cover 7. At a position facing the lead wire fixing groove 32, a plurality of through holes 31 penetrating through the lower surface of the lead wire terminal block 8 are formed. In the direction in which the plurality of through holes 31 are arranged, and between the plurality of through holes 31 and the lead wire fixing groove 32, a through groove 33 penetrating through the lower surface of the lead wire terminal block 8 is formed. Each of the lead wire fixing grooves 32 is provided with a lead wire 9 having a flat terminal pin portion 29 and a connection terminal 30 connected to the flat terminal pin portion 29 by arc welding. The flat terminal pin portions 29 penetrate through the respective through holes 31 from the lower surface of the lead wire terminal block 8 and are erected on the upper surface of the lead wire terminal block 8 as described later. Further, a flange portion 25 is formed outside the fixed convex portion 22 so as to contact the convex portion 11 of the stator core 2.
[0030]
A concave portion is formed on the lower surface of the lead wire terminal block 8, and a plurality of through holes 31 and through grooves 33 penetrate the upper surface of the lead wire terminal block 8, respectively. A plurality of slack pins 36 and fixing pins 34 are formed and implanted, respectively. The width W1 and the depth D1 of the lower surface of the lead wire terminal block 8 are substantially equal to the width W2 and the depth D2 of the recess 12 of the stator core 2, respectively, so that the lead wire terminal block 8 can be fitted into the recess 12 of the stator core 2. . A slack pin 36 for guiding a stator winding is provided upright between the plurality of through holes 31. The sagging pin 36 is cut, for example, at the base so that the slack pin 36 can be easily broken off from the base of the lead wire terminal block. On the other side of the through-groove 33 where the slack pins 36 are provided, fixed pins 34 for winding the stator winding ends are respectively provided upright. The fixing pin 34 preferably has a substantially rectangular column shape so that the wound stator winding does not come off, and is provided upright at a position oblique to the flat terminal 10.
[0031]
The flat terminal 10 is provided so as to cross the through groove 33, and the flat terminal pin portion 29 is inserted into the through hole 39 from the lower surface of the lead wire terminal block 8 and penetrates the upper surface. The penetrated flat terminal pin portion 29 is connected to the connection terminal 30 at the tip of the lead wire 9 which is less than or equal to the height of the concave portion of the lead wire terminal block 8 and is disposed in the lead wire fixing groove 32. . A projection 41 is fitted into the through hole 39 of the flat terminal 10. The stator winding end 35 is passed through the gap of the flange-shaped welded portion 38 formed on the flat terminal 10 via the slack pin 36 and wound around the fixed pin 34 several times. The stator winding passed through the gap of the welding portion 38 is resistance-welded as described later. At both ends of the lead wire fixing groove 32, the fitting projection 24 is formed in a direction in which the slack pin 36 stands, that is, in a direction facing the other insulating member 6. The fitting projection 24 is fitted into a through hole 26 provided in the projection 19 of the other insulating member 6.
[0032]
4 and 5, a lead wire terminal block 8 formed separately from the stator core 2 is fitted, and one insulating member 5 and the other insulating member 6 are provided on both sides thereof, and a cover 7 is further provided on the outside thereof. , 3 will be described. In the lead wire terminal block 8 fitted in the concave portion of the stator core 2, the flange portion 25 is in contact with the convex portion 11 of the stator core 2. The fitting protrusion 24 is fitted in a through hole 26 formed in the other insulating member 6. One insulating member 5 is in contact with the convex portion 20 of the cover 7 and the surrounding standing wall 7a, and the other insulating member 6 is in contact with the convex portion 21 of the cover 3 and the surrounding standing wall 3a.
[0033]
FIG. 7 is an exploded view of a stator assembly in which the lead wire terminal block and the insulating member are integrally formed, and the lead wire terminal block 8 is horizontally moved from a portion G shown in FIG. In this structure, the two separate members are provided on one insulating member 5 and the other insulating member 6, respectively. That is, one of the insulating members 5 has a portion above the G portion shown in FIG. 3A, and the other insulating member 6 has a portion below the G portion shown in FIG. , 80. The structure of the stator core 2 is the same as that of the embodiment shown in FIG.
[0034]
7, the same components as those described in FIGS. 1 and 3 are denoted by the same reference numerals, and description thereof will be omitted. One insulating member 5 has a convex portion 81 on the outer periphery thereof, and the convex portion 81 has a plurality of through holes 31 and through grooves 33 formed therein. A plurality of lead wire fixing grooves 32 are shown in FIG. 3 (a) on the side opposite to the side of the projection 81 that contacts the stator core 2, that is, on the side facing the cover (7) not shown. It is formed as follows. Protrusions 50 are formed at both ends of the through groove 33 on the side of the protrusion 81 that contacts the stator core 2.
[0035]
The other insulating member 6 has a protrusion 80 on its outer periphery, and the protrusion 80 has a plurality of through holes 31 and through grooves 33 formed therein. A concave portion is formed on the side of the convex portion 80 opposite to the side in contact with the stator core 2, that is, on the side facing the cover (3) (not shown), and a plurality of through holes 31 are formed in the concave portion. , Through-grooves 33 respectively penetrate. Further, a protrusion 41 is formed on one side of the through groove 33, and a fixing pin 34 is implanted. On the other side of the through groove 33, a plurality of slack pins 36 are implanted between the plurality of through holes 31, and are formed as shown in FIG. The sagging pins 36 are cut, for example, at the base of the lead terminal block so that they can be easily cut off from the base. The protrusion 80 has through holes 51 formed at both ends of the through groove 33. The protrusions 80 and 81 are fitted into the recesses 12 formed in the protrusions of the stator core, and the protrusions 50 are fitted into the through holes 51, and the tips of the protrusions are melted, so that one of the insulating members 5 is formed. And the other insulating member 6 are fixed to both sides of the stator core 2.
[0036]
The stator assembly 1 of FIG. 1 is assembled as follows. That is, the flat terminal pin portions 29 are inserted into the plurality of through holes 31, and the lead wire terminal block 8 in which the through holes 39 formed in the flat terminals 10 and the fixing protrusions 41 are fitted to the stator core 2. Is fitted in the concave portion 12 formed in the convex portion 11. One insulating member 5 and the other insulating member 6 are closely fitted to each other from both sides of the stator core 2 to fit the through holes 26 and the fitting projections 24, and the tips of the fitting projections 24 are melted. Then, the stator core 2, the one insulating member 5 and the other insulating member 6 are fixed to assemble the stator assembly.
[0037]
A method of connecting a resolver using the stator assembly 1 of FIG. 1 will be described below with reference to FIG. A stator winding (not shown) is wound around each magnetic pole of the stator assembly 1, and the wound stator winding end 35 is bent through the slack pin 36 to form a welded portion formed by bending the flat terminal 10. After passing through the space between the fixing pins, the leading ends thereof are wound around the fixing pins. An electrode of a resistance welder (not shown) is inserted into the through groove 33 from above and below, and the weld is pressed from above and below to perform resistance welding. As a result, the stator winding 35 that has passed between the welds 38 is welded to the flat terminal 10 at the welds 38. Thereafter, the slack pin 36 is broken off.
[0038]
Next, the connection terminal 30 of the lead wire 9 with the connection terminal 30 crimped to the tip is disposed along the lead wire fixing groove 32, and is inserted into the plurality of through holes 31 and penetrated through one surface. The connection terminal 30 is engaged with the pin portion 29, and the flat terminal pin portion 29 and the connection terminal 30 are arc welded. The lead wire 9 is connected to the stator winding 35 welded to the flat terminal 10 at the welding portion 38 via the flat terminal pin portion 29. The slack pin 36 may be broken after the arc welding is completed.
[0039]
The stator assembly 1 of FIG. 7 is assembled as follows. That is, the flat terminal pins 29 are inserted into the plurality of through-holes 31 formed in one of the insulating members 5, and the through-holes 39 formed in the flat terminal 10 are fitted into the fixed projections 41 to thereby form the flat terminal. 10 is fixed so as to cross the through groove 33. The protrusions 81 and 80 of one insulating member 5 and the other insulating member 6 are closely fitted to the recesses 12 of the stator core 2 from both sides of the stator core 2 to fit the through holes 51 and the protrusions 50. Then, the stator core 2 and one of the insulating members 5 and the other insulating member 6 are fixed by melting the tip of the convex portion 50 to assemble the stator assembly.
[0040]
A method for connecting a resolver using the stator assembly 1 shown in FIG. 7 will be described below with reference to FIG. A stator winding (not shown) is wound around each magnetic pole of the stator assembly 1, and the wound stator winding end 35 is bent through the slack pin 36 to form a welded portion formed by bending the flat terminal 10. After passing through the space between the fixing pins, the leading ends thereof are wound around the fixing pins. An electrode of a resistance welder (not shown) is inserted into the through groove 33 from above and below, and the welded portion is pressed from above and below to perform resistance welding. As a result, the stator winding 35 that has passed between the welds 38 is welded to the flat terminal 10 at the welds 38. Thereafter, the slack pin 36 is broken off.
[0041]
Next, the connection terminal 30 of the lead wire 9 with the connection terminal 30 crimped to the tip is disposed along the lead wire fixing groove 32, and is inserted into the plurality of through holes 31 and penetrated through one surface. The connection terminal 30 is engaged with the pin portion 29, and the flat terminal pin portion 29 and the connection terminal 30 are arc welded. The lead wire 9 is connected to the stator winding 35 welded to the flat terminal 10 at the welding portion 38 via the flat terminal pin portion 29. The slack pin 36 may be broken after the arc welding is completed.
[0042]
【The invention's effect】
According to the input / output terminal structure of the resolver according to claim 1, the lead wire terminal block is provided with a fixing pin for winding a stator winding end, and a plurality of through holes; A through-groove is formed in a direction in which the plurality of through-holes are arranged, and a flat terminal having a flat terminal pin portion connecting the lead wire and the stator winding is horizontally formed on the lead wire terminal block so as to cross the through-groove. And a connection terminal connected to the flat terminal pin portion is provided at the end of the lead wire, so that the terminal plate can be downsized and the electrode of the resistance welder can be easily inserted into the through groove. As a result, it is possible to use, for example, a polyamide-imide wire having a high dielectric strength as the stator winding of the resolver, and a small-sized resolver having a high environmental temperature can be realized. Further, the lead wire does not need to be wound with the stator winding attached to the stator, so that the jig structure of the automatic winding machine is simplified and automation is facilitated.
[0043]
According to the input / output terminal structure of the resolver according to claim 2, the lead wire terminal block has a plurality of lead wire fixing grooves formed on one surface and the plurality of through holes on the other surface. A slack pin for guiding the stator winding on the side where the holes are arranged and a fixing pin for winding the stator winding end on the opposite side where the slack pin is provided across the through groove are provided upright. Since the slack pin can be easily broken off from the base of the lead wire terminal block, there is no need to wind the stator winding with the lead wire attached to the stator. The jig structure of the wire machine is simplified. Further, conventionally, the jig is provided with the slack pin. However, the slack pin can be easily cut off from the base of the lead wire terminal block, thereby simplifying the jig structure.
[0044]
According to the input / output terminal structure of the resolver according to claim 3, the lead wire terminal block has a fitting projection formed on the surface on which the fixing pin and the slack pin are provided or on the other surface. The fitting convex portion is fitted in a through hole formed in one of the one insulating member and the other insulating member, so that the fitting convex portion is fused, so that the Fixed.
[0045]
According to the input / output terminal structure of the resolver according to the fourth aspect, the lead wire terminal block is provided with a flange portion that is in contact with a stator core on a surface opposite to the fitting convex portion. Positioning in the direction is facilitated, and fixed in the axial direction.
[0046]
According to the input / output terminal structure of the resolver according to claim 5, since the lead wire terminal block is formed separately from the one insulating member and the other insulating member, the degree of freedom of design increases, Lead wire terminal blocks suitable for specifications such as high temperature environments can be used.
[0047]
According to the input / output terminal structure of the resolver according to claims 6 and 7, the lead wire terminal block is formed integrally with one of the insulating members or the other insulating member, and has one surface and the other surface. Since the upper terminal block and the lower terminal block are separated from each other, the structure can be simplified and the cost can be reduced in a resolver used when the use environment is gentle.
[0048]
According to the input / output terminal structure of the resolver according to claims 8 and 9, the flat terminal pin portion is bent substantially 90 degrees with respect to the flat terminal, inserted into the through hole, and penetrated through the other surface. The penetrated flat terminal pin portion is connected to a connection terminal provided along the lead wire fixing groove, and a flange-shaped welded portion is formed at a position crossing the through groove by bending. Thereby, the stator winding and the welded portion can be easily welded by the resistance welding machine.
[0049]
According to the connecting method of the resolver according to claim 10, the lead wire terminal block to which the flat terminal is attached is fixed to the stator core, the stator winding is wound, and the stator winding is resistance-welded to the welding portion. Then, the flat terminal pin portion and the connection terminal are arc-welded to each other to facilitate automation.
[0050]
According to the method of connecting a resolver according to claim 11, the flat terminal pin portion is inserted into the plurality of through holes, and the through hole formed in the flat terminal and the fixed convex portion are fitted to the lead terminal. After the base is fitted into the concave portion formed in the convex portion of the stator core, one of the insulating members and the other insulating member are closely fitted from both sides of the stator core. A stator assembly is formed by fitting a through hole formed in the member with the fitting protrusion, melting the tip of the fitting protrusion and fixing the tip to an insulating member, thereby forming a stator winding. The stator assembly can be easily turned.
[0051]
According to the method for connecting a resolver according to claim 12, a stator winding is wound around the stator assembly, and the wound stator winding end is formed by bending the flat terminal through a slack pin. After passing between the welded portions, the tip is wound around a fixing pin, electrodes of a resistance welder are inserted from above and below the through groove, and the welded portions are resistance-welded, thereby forming a gap between the welded portions. Is welded to the flat terminal at the welded portion, and then the slack pin is broken off, so that the resolver can be connected with a simple jig structure.
[0052]
According to the method for connecting a resolver according to claim 13, the connection terminal of the lead wire whose connection terminal is crimped to the tip is disposed along the lead wire fixing groove, and is inserted into the plurality of through holes. The resolver can be connected by a simple automatic winding jig structure by engaging the connection terminal with the flat terminal pin portion penetrating through one surface and arc welding the flat terminal pin portion and the connection terminal.
[Brief description of the drawings]
FIG. 1 is an exploded view of a stator assembly according to the present invention.
FIG. 2 is an exploded view of the stator core, the other insulating member, and the lead terminal block of the present invention.
3A and 3B are perspective views of the lead wire terminal block of the present invention, wherein FIG. 3A is a top perspective view, FIG. 3B is a bottom perspective view, and FIG. 3C is an enlarged view around a flat terminal. It is.
FIG. 4 is a cross-sectional view of the stator assembly of the present invention, taken along the line 2A-B of FIG.
FIG. 5 is a cross-sectional view of the stator assembly of the present invention taken along the line 2C-D of FIG. 2;
FIG. 6 is a perspective view of the flat terminal of the present invention.
FIG. 7 is an exploded view showing another embodiment of the stator assembly of the present invention.
FIG. 8 is a front view (a) and a front view (b) of a stator of a conventional resolver.
FIG. 9 is a diagram of a conventional terminal plate.
FIG. 10 is a view showing a conventional lead wire.
[Explanation of symbols]
1 Stator assembly
2 Stator core
3, 7 cover
5, 6 Insulating member
8 Lead wire terminal block
9 Lead wire
10 Flat terminal
29 Flat terminal pin
34 fixing pin
36 Slack Pin
38 Welds

Claims

A stator core in which a plurality of plate-like bodies each having a plurality of fixed magnetic pole teeth having a plurality of fixed magnetic pole teeth protruding in a direction toward the center of the yoke portion are stacked, and one provided on each of both sides from the axial direction of the stator core In a resolver having a stator assembly provided with a lead wire terminal block for connecting an insulating member and the other insulating member, and a stator winding wound around a fixed magnetic pole to a lead wire,
In the lead wire terminal block, a fixing pin for winding a stator winding end is implanted, a plurality of through holes, and a through groove is formed in a direction in which the plurality of through holes are arranged. A flat terminal having a flat terminal pin portion connecting the lead wire and the stator winding is provided horizontally on the lead wire terminal block so as to cross the through groove,
The input / output terminal structure of a resolver, wherein a connection terminal connected to the flat terminal pin portion is provided at a tip of the lead wire.

The lead wire terminal block has a plurality of lead wire fixing grooves formed on one surface thereof, and a slack pin for guiding a stator winding to a side on which the plurality of through holes are arranged on the other surface, A fixing pin for winding a stator winding end is provided upright on the side opposite to the side where the sagging pin is provided across the through groove, and the sagging pin is easily mounted from the base of the lead wire terminal block. The input / output terminal structure of a resolver according to claim 1, wherein the input / output terminal structure can be folded.

The lead wire terminal block has a fitting protrusion formed on the surface on which the fixing pin and the slack pin are provided or on the other surface, and the fitting protrusion is formed on the one insulating member or the other insulating member. 3. The input / output terminal structure of a resolver according to claim 1, wherein the input / output terminal structure is fitted into a through hole formed in any one of the above.

The resolver according to any one of claims 1 to 3, wherein the lead wire terminal block has a flange formed on a surface opposite to the fitting protrusion to abut against a stator core. Output terminal structure.

The input / output terminal structure of a resolver according to any one of claims 1 to 4, wherein the lead wire terminal block is formed separately from one insulating member and the other insulating member.

The input / output terminal structure of a resolver according to any one of claims 1 to 4, wherein the lead wire terminal block is formed integrally with one insulating member or the other insulating member.

The lead terminal block is composed of an upper terminal block and a lower terminal block separated between one surface and the other surface, wherein the upper terminal block has one insulating member and the lower terminal block has the other insulating member. The resolver input / output terminal structure according to any one of claims 1 to 4, wherein the input / output terminal structure is formed integrally with the resolver.

In the flat terminal, the flat terminal pin portion is bent approximately 90 degrees with respect to the flat terminal, is inserted into the through hole, and penetrates the other surface, and the penetrated flat terminal pin portion is The input / output terminal structure of a resolver according to claim 1, wherein the input / output terminal structure is connected to a connection terminal provided along the lead wire fixing groove.

2. The input / output terminal structure of a resolver according to claim 1, wherein the flat terminal is formed by bending a flange-shaped welded portion at a position crossing the through groove. 3.

A stator core in which a plurality of plate-like bodies each having a plurality of fixed magnetic pole teeth having a plurality of fixed magnetic pole teeth protruding in a direction toward the center of the yoke portion are stacked, and one insulating member provided on each side of the stator core And the other insulating member, and a lead wire terminal block for connecting a stator winding wound around a fixed magnetic pole to a lead wire, and the stator core has a recess for fitting the lead wire terminal block. A convex part having inside is formed,
The lead wire terminal block has a plurality of through holes and a through groove formed in a direction in which the plurality of through holes are arranged, and a through hole formed in one of the insulating members on one surface. Has a fitting protrusion to be fitted with, a plurality of lead wire fixing grooves,
On the other surface different from the one surface, a fixing pin for winding a stator winding end and a slack pin which can be easily cut off from the base of the lead wire terminal block are respectively provided on both sides of the through groove. A flat terminal having a flat terminal pin portion for connecting the lead wire and the stator winding is provided so as to cross the through groove, and the other surface is connected to the stator core. A fixed convex portion that fits into a mating flange portion and a through hole formed in the flat terminal is formed, and the flat terminal is formed by bending a flange-shaped welded portion at a position crossing the through groove. An input / output terminal structure of a resolver including a stator assembly in which the flat terminal pin portion is bent at substantially 90 degrees in a direction that can be inserted into a plurality of through holes formed in the lead wire terminal block,
The lead wire terminal block having the flat terminal attached thereto is fixed to the stator core, and the stator winding is wound, and the stator winding is resistance-welded to the welded portion and fixed by fusion. A method for connecting a resolver, comprising: arc welding a connection terminal.

The flat terminal pin portion is inserted into the plurality of through holes, and a lead wire terminal block in which the through hole formed in the flat terminal and the fixed convex portion are fitted is formed on the convex portion of the stator core. After fitting into one of the stator cores, one insulating member and the other insulating member are tightly fitted from both sides of the stator core, and a through hole formed in one of the insulating members and the fitting convex portion are formed. 11. The method of connecting resolvers according to claim 10, wherein a stator assembly is formed by fitting the protrusions and melting the tips of the fitting protrusions and fixing them to an insulating member.

A stator winding is wound around the stator assembly, and the wound stator winding end is passed through a bent welded portion of the flat terminal via a slack pin, and then fixed. The tip of the stator is wound around the pin, the electrodes of the resistance welder are inserted from above and below the through groove, and the welded portion is resistance-welded to flatten the stator winding passing between the welded portions at the welded portion. The method for connecting a resolver according to claim 10, wherein the slack pin is broken off after welding to the terminal.

A connection terminal of a lead wire whose connection terminal is crimped to the tip is disposed along the lead wire fixing groove, and the flat terminal pin portion inserted into the plurality of through holes and penetrated through the one surface is provided with the connection terminal. The method for connecting a resolver according to claim 10, wherein the connection terminal is engaged, and the flat terminal pin portion and the connection terminal are arc-welded.